CN114473940B - Automatic adjusting tool for guide shaft bush gap of hydraulic generator - Google Patents
Automatic adjusting tool for guide shaft bush gap of hydraulic generator Download PDFInfo
- Publication number
- CN114473940B CN114473940B CN202210109971.4A CN202210109971A CN114473940B CN 114473940 B CN114473940 B CN 114473940B CN 202210109971 A CN202210109971 A CN 202210109971A CN 114473940 B CN114473940 B CN 114473940B
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- 230000009467 reduction Effects 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
- B25B23/147—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for electrically operated wrenches or screwdrivers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention provides an automatic adjustment tool for the gap between guide shaft tiles of a hydraulic generator, which is characterized in that a front panel and a rear panel are connected through a plurality of support columns, coaxial through holes are formed in the front panel and the rear panel, a nut wrench is arranged on the through holes of the front panel, the nut wrench is rotationally connected with the front panel, a screw wrench is arranged on the through holes of the rear panel, the screw wrench is rotationally connected with the rear panel, at least one first motor is arranged on the front panel, the first motor is connected with the nut wrench, a second motor is arranged on the rear panel, and the second motor is connected with the screw wrench. The screw locking and nut fastening functions which are respectively finished by the original two wrenches are concentrated to be finished by one wrench, so that the multifunctional aim is fulfilled. The novel designs of the large gear wrench and the turbine wrench are adopted to realize the fastening and fine adjustment of the nut and the screw. The double-motor drive is used as a power source for fastening nuts, the gear motor drive is used as a power source for fine adjustment of the screw, and the two power designs meet different moment requirements.
Description
Technical Field
The invention relates to the field of guide bush gap adjustment, in particular to an automatic adjustment tool for the guide bush gap of a hydraulic generator.
Background
At present, in the adjustment of the gap between the upper guide shoe and the lower guide shoe of a power plant, the purpose of fastening the heavy-resistant bolt of the guide shoe is achieved mainly by means of manpower through hammering the shoe adjusting wrench by a hand hammer with higher poundage. The specific method comprises the following steps: the square head at the end of the screw rod is clamped, then the nut of the anti-heavy bolt is fastened, and the screw rod is prevented from rotating along with the screw rod when the nut is fastened, so that the tile gap is changed. The diameter of the heavy-duty bolt is 80mm, the opposite side size of the nut is 120mm, and the tile adjusting wrench for clamping the nut is very heavy due to the large size of the heavy-duty bolt, so that a large amount of manpower is required to be consumed. In order to ensure that the heavy-duty bolt reaches the required fastening moment, manual adjustment of the gap between the tiles is completed by cooperation of multiple persons, the tile adjusting tool is also a traditional fork spanner, rotation of the heavy-duty bolt and the screw rod is easy to cause in the knocking process, repeated attempt is required for adjusting the gap between the tiles, a large amount of gap adjustment of one tile is consumed, and the working efficiency is quite low.
Because the working space of the upper oil guide groove is narrow, the strength is insufficient when the hand hammer is knocked, the heavy-duty bolt cannot meet the requirement of fastening moment, and when the machine is in a startup test for expansion repair, the situation that a large number of heavy-duty bolts are completely loosened after 154% load shedding of the machine set is caused due to the insufficient fastening moment of the heavy-duty bolt. According to the problems encountered in the expansion startup test, it is necessary to design a tile adjusting tool with high reliability, so that the tightening torque of the heavy-duty bolt can be ensured to meet the requirements, the tile adjusting operation success rate is improved, the tile adjusting operation time is shortened, the tile adjusting operation personnel are reduced, and the working efficiency is improved while the tile adjusting torque is precisely controlled.
Disclosure of Invention
The invention mainly aims to provide an automatic adjustment tool for the gap between guide shoes of a hydraulic generator, which solves the problems that a large amount of gap adjustment of one shoe is consumed due to the fact that a hand hammer with a higher pound is used for hammering a shoe adjusting wrench mainly by manpower in the adjustment of the gap between the upper guide shoe and the lower guide shoe of a power plant, and the working efficiency is quite low.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a hydraulic generator guide bush clearance automatic adjustment instrument, including front panel and rear panel, be connected through a plurality of support columns between front panel and the rear panel, all be equipped with coaxial through-hole on front panel and the rear panel, be equipped with nut spanner on the through-hole of front panel, nut spanner rotates with front panel to be connected, is equipped with screw spanner on the through-hole of rear panel, screw spanner rotates with the rear panel to be connected, is equipped with at least one first motor on the front panel, and first motor is connected with nut spanner, is equipped with the second motor on the rear panel, and the second motor is connected with screw spanner.
In the preferred scheme, a first motor is arranged on a support column through a plurality of motor fixing plates, a pinion is arranged at the driving end of the first motor, a large gear disc is arranged at the outer ring of a nut wrench, the large gear disc and the nut wrench form an integrated structure, a tightening hole of the nut wrench is of a through hole structure, and the pinion on the first motor is meshed with the large gear disc;
the front panel is also provided with a third motor, and the output end of the third motor is meshed with the large gear plate through a gear.
In the preferred scheme, be equipped with the baffle on the support column at front panel both ends, the baffle is established in gear wheel dish one side, and the baffle plate body stretches out to gear wheel dish disk body position.
In the preferred scheme, first motor and third motor tail end still are equipped with manual rotation groove, and the rear panel still is equipped with at manual rotation groove relative position and dodges the groove.
In the preferred scheme, the second motor is communicated with the screw wrench through a reduction gearbox, and the reduction gearbox is arranged on the reduction gearbox.
In the preferred scheme, the tightening hole of the screw wrench is of a through hole structure, the outer ring of the screw wrench and the worm wheel form an integrated structure, and the output end of the reduction gearbox is provided with a worm which is meshed with the worm wheel.
In the preferred scheme, a transmission rod is further arranged, one end of the transmission rod is communicated with the reduction gearbox, the other end of the transmission rod is connected with the worm, supporting seats are further arranged at two ends of the worm, and the supporting seats are rotationally connected with the transmission rod.
In the preferred scheme, one side of the screw wrench is provided with a pressing sheet, and the pressing sheet presses the screw wrench on the rear panel through at least three pressing sheet supports.
In the preferred scheme, screw spanner one side still is equipped with bellied annular rotation boss, rotates the boss and passes the through-hole of preforming and rotate with the preforming and be connected.
In the preferred scheme, fixed otic placodes are still equipped with in front panel both sides, and fixed otic placode and front panel fixed connection or articulated.
In the preferred scheme, the rear panel is also provided with a control box, the control box is electrically connected with the first motor, the second motor and the third motor, and is also provided with a control handle, and the control handle is electrically connected with the control box.
The invention provides an automatic adjustment tool for the gap of a guide bush of a hydraulic generator, which adopts the design of integrating a torque wrench and a screw locking device, thereby reducing the volume of the tool. The nut fastening and the screw clamping are adopted to respectively drive the design, so that a good fastening effect can be achieved. The brushless motor is adopted as a power component, so that the safety and the reliability of work can be ensured, meanwhile, the speed reduction motor is configured, the required moment can be achieved by a method of reducing the rotating speed and improving the torque, and meanwhile, the fastening moment can be flexibly controlled. The tile adjusting screw is firmly installed, and the service life of the part is not influenced by overlarge moment. The main benefits are as follows:
firstly, the working intensity of an maintainer can be greatly reduced, the maintainer does not need to use a hand hammer to knock a wrench, and 1 person of the operator is reduced;
secondly, various risks in personnel working are reduced, including unstable erection of the jack and breakage of the chain block;
thirdly, improve work efficiency, need many people's cooperation in the tradition work, and novel hydraulic generator guide shaft tile clearance adjustment instrument can ensure once to accomplish the nut fastening, reaches the fastening moment requirement, need not to relapse. The operation time is shortened, and the working efficiency is greatly improved.
4. The design and the use of the special tool change the traditional guide bush clearance adjustment process, and the special tool is the first time in the industry. The technology realizes the automation of the guide shaft bush gap adjustment work, and has good prospect of comprehensive popularization in other hydropower stations.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a front elevational view of the overall construction of the present invention;
FIG. 2 is a rear elevational overall view of the present invention;
FIG. 3 is a left side cross-sectional view of the structure of the present invention;
FIG. 4 is a block diagram of the screw wrench drive of the present invention;
FIG. 5 is a block diagram of a screw wrench preform of the present invention;
FIG. 6 is a block diagram of a nut runner drive of the present invention;
FIG. 7 is a left side view of the nut runner of the present invention;
FIG. 8 is a top mounting block diagram of the nut runner of the present invention;
FIG. 9 is a lower mounting block diagram of the nut wrench of the present invention;
FIG. 10 is a block diagram of the guide shoe screw nut arrangement of the present invention;
FIG. 11 is a schematic diagram of a control circuit of the present invention;
in the figure: a front panel 1; fixing the ear plate 2; a nut wrench 3; a support column 4; a motor fixing plate 5; a first motor 6; manually rotating the tank 601; a rear panel 7; avoiding the groove 701; a control box 8; a second motor 9; a reduction gearbox 10; a worm 11; a worm wheel 12; a screw spanner 13; rotating the boss 1301; a third motor 14; a large gear plate 15; a baffle 16; a pinion 17; a transmission rod 18; a support base 19; tabletting 20; a tabletting strut 21.
Detailed Description
Example 1
As shown in fig. 1-11, an automatic adjustment tool for the guide shaft bush gap of a hydraulic generator comprises a front panel 1 and a rear panel 7, wherein the front panel 1 and the rear panel 7 are connected through a plurality of support columns 4, coaxial through holes are formed in the front panel 1 and the rear panel 7, a nut wrench 3 is arranged on the through holes of the front panel 1, the nut wrench 3 is rotationally connected with the front panel 1, a screw wrench 13 is arranged on the through holes of the rear panel 7, the screw wrench 13 is rotationally connected with the rear panel 7, at least one first motor 6 is arranged on the front panel 1, the first motor 6 is connected with the nut wrench 3, a second motor 9 is arranged on the rear panel 7, and the second motor 9 is connected with the screw wrench 13. The nut wrench 3 and the screw wrench 13 are installed on coaxial through holes of the front panel 1 and the rear panel 7, and the tightening holes of the screw wrench 13 and the nut wrench 3 are of through hole structures, so that the screw in fig. 11 is convenient to be matched with the screw wrench 13, and the screw wrench 13 and the nut wrench 3 are controlled to rotate by the first motor 6 and the second motor 9 to adjust the gap of the guide bush of the hydraulic generator. The screw locking and nut fastening functions which are respectively finished by the original two wrenches are concentrated to be finished by one wrench, so that the multifunctional aim is fulfilled.
In the preferred scheme, the first motor 6 is established on the support column 4 through a plurality of motor fixed plates 5, and first motor 6 drive end is equipped with pinion 17, and the nut runner 3 outer lane is equipped with gear wheel 15, and gear wheel 15 forms an organic whole structure with nut runner 3, and the tight hole of turning round of nut runner 3 is the through-hole structure, and pinion 17 on the first motor 6 meshes with gear wheel 15, still is equipped with third motor 14 on the front panel 1, and the third motor 14 output passes through gear and gear wheel 15 meshing. As shown in fig. 6-9, a dual motor drive is used as the power source for the nut runner 3, a gear motor drive is used as the power source for the screw fine adjustment, and the two power designs meet different torque requirements. The nut runner 3 and the large gear disk 15 are of an integrated structure, and the whole nut runner 3 is driven by the first motor 6 and the third motor 14.
In the preferred scheme, baffle 16 is arranged on support columns 4 at two ends of front panel 1, baffle 16 is arranged on one side of large gear 15, and the plate body of baffle 16 extends to the position of the plate body of large gear 15. The baffle 16 prevents the large gear disk 15 from falling off the front panel 1.
The first motor 6 and the third motor 14 are gear motors, and the reduction gearbox is a pin cycloid gear reducer or a planet gear reducer.
In the preferred scheme, the tail ends of the first motor 6 and the third motor 14 are also provided with a manual rotation groove 601, and the rear panel 7 is also provided with an avoidance groove 701 at the relative position of the manual rotation groove 601. The manual adjustment tool extends into the manual rotation groove 601 from the avoiding groove 701, and the rotation speeds of the first motor 6 and the third motor 14 are adjusted manually.
In a preferred embodiment, the second motor 9 is communicated with the screw wrench 13 through a reduction gearbox 10, and the reduction gearbox 10 is arranged on the reduction gearbox 10. The reduction gearbox 10 is used to increase the rotational torque of the second motor 9.
In the preferred scheme, the tightening hole of screw spanner 13 is through-hole structure, and screw spanner 13 outer lane and worm wheel 12 form an organic whole structure, and reduction gearbox 10 output is equipped with worm 11, and worm 11 and worm wheel 12 meshing. The screw wrench 13 has a through hole structure, and can prevent the screw from reversing by adopting a structure in which the worm 11 is engaged with the worm wheel 12.
In the preferred scheme, a transmission rod 18 is further arranged, one end of the transmission rod 18 is communicated with the reduction gearbox 10, the other end of the transmission rod is connected with the worm 11, supporting seats 19 are further arranged at two ends of the worm 11, and the supporting seats 19 are rotatably connected with the transmission rod 18. The supporting seat 19 is used for fixing the position of the transmission rod 18, so that the second motor 9 can conveniently drive the worm 11 to rotate.
In a preferred embodiment, a presser 20 is provided on one side of the screw wrench 13, and the presser 20 presses the screw wrench 13 against the rear panel 7 via at least three presser posts 21. One side of the screw wrench 13 is also provided with a raised annular rotating boss 1301, and the rotating boss 1301 penetrates through a through hole of the pressing sheet 20 to be connected with the pressing sheet 20 in a rotating manner. The press piece 20 presses the screw wrench 13 on the rear panel 7, facilitating the rotation of the screw wrench 13 on the rear panel 7.
In the preferred scheme, the front panel 1 both sides still are equipped with fixed otic placode 2, and fixed otic placode 2 and front panel 1 fixed connection or articulated. The scheme is preferably that the fixed ear plate 2 is fixedly connected with the front panel 1, and the fixed ear plate 2 is used for fixing the whole device on the body of the water turbine.
In the preferred scheme, the rear panel 7 is also provided with a control box 8, the control box 8 is electrically connected with the first motor 6, the second motor 9 and the third motor 14, and is also provided with a control handle, and the control handle is electrically connected with the control box 8. The control handle controls the rotation angles of the first motor 6, the second motor 9 and the third motor 14.
Example 2
Further described in connection with example 1, as in fig. 1-11, the adjustment of the tile adjustment screw is followed by manual rotation of the nut and screw into position. The tool is put in, then the heavy-duty bolt and nut are sleeved into the nut spanner 3, the heavy-duty bolt and nut is sleeved into the screw spanner 13, and the fixed lug plates 2 at the two ends of the front panel 1 are screwed into the tile frame fixing threaded holes through the screw bolts, so that the whole tool can be fixed. And measuring the actual value of the gap between the end part of the anti-weight screw and the guide shoe, and using an operating handle to operate the screw spanner 13 for fine adjustment until the gap meets the requirement. The nut runner 3 is operated using an operating handle, and the nut runner 3 is tightened to a maximum torque. And retesting the gap value between the end part of the weight-resistant screw and the guide shoe, and if the gap value is unchanged, meeting the requirement. The screw locking and nut fastening functions which are respectively finished by the original two wrenches are concentrated to be finished by one wrench, so that the multifunctional aim is fulfilled. The existing resources, namely the tile rack threaded holes, are ingeniously utilized as supporting points of the screw locking mechanism, and the whole device is supported. The novel designs of the large gear wrench and the turbine wrench are adopted to realize the fastening and fine adjustment of the nut and the screw. The double-motor drive is used as a power source for fastening nuts, the gear motor drive is used as a power source for fine adjustment of the screw, and the two power designs meet different moment requirements.
The above embodiments are only preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention should be defined by the claims, including the equivalents of the technical features in the claims. I.e., equivalent replacement modifications within the scope of this invention are also within the scope of the invention.
Claims (9)
1. An automatic adjustment tool for the gap between guide shoes of a hydraulic generator is characterized in that: the novel screw wrench comprises a front panel (1) and a rear panel (7), wherein the front panel (1) and the rear panel (7) are connected through a plurality of support columns (4), coaxial through holes are formed in the front panel (1) and the rear panel (7), a nut wrench (3) is arranged on the through holes of the front panel (1), the nut wrench (3) is rotationally connected with the front panel (1), a screw wrench (13) is arranged on the through holes of the rear panel (7), the screw wrench (13) is rotationally connected with the rear panel (7), at least one first motor (6) is arranged on the front panel (1), the first motor (6) is connected with the nut wrench (3), a second motor (9) is arranged on the rear panel (7), and the second motor (9) is connected with the screw wrench (13);
the first motor (6) is arranged on the support column (4) through a plurality of motor fixing plates (5), a pinion (17) is arranged at the driving end of the first motor (6), a large gear disc (15) is arranged on the outer ring of the nut wrench (3), the large gear disc (15) and the nut wrench (3) form an integrated structure, a tightening hole of the nut wrench (3) is of a through hole structure, and the pinion (17) on the first motor (6) is meshed with the large gear disc (15);
the front panel (1) is also provided with a third motor (14), and the output end of the third motor (14) is meshed with the large gear disc (15) through a gear.
2. The automatic adjustment tool for the guide shoe clearance of a hydraulic generator according to claim 1, wherein: baffle plates (16) are arranged on the support columns (4) at the two ends of the front panel (1), the baffle plates (16) are arranged on one side of the large gear disc (15), and the plate bodies of the baffle plates (16) extend out to the disc body positions of the large gear disc (15).
3. The automatic adjustment tool for the guide shoe clearance of a hydraulic generator according to claim 1, wherein: the tail ends of the first motor (6) and the third motor (14) are also provided with a manual rotation groove (601), and the rear panel (7) is also provided with an avoidance groove (701) at the relative position of the manual rotation groove (601).
4. The automatic adjustment tool for the guide shoe clearance of a hydraulic generator according to claim 1, wherein: the second motor (9) is communicated with the screw wrench (13) through a reduction gearbox (10), and the reduction gearbox (10) is arranged on the reduction gearbox (10).
5. The automatic adjustment tool for the guide shoe clearance of a hydraulic generator according to claim 4, wherein: the tightening hole of the screw wrench (13) is of a through hole structure, an outer ring of the screw wrench (13) and the worm wheel (12) form an integrated structure, a worm (11) is arranged at the output end of the reduction gearbox (10), and the worm (11) is meshed with the worm wheel (12).
6. The automatic adjustment tool for the guide shoe clearance of a hydraulic generator according to claim 5, wherein: the novel gear box is characterized by further comprising a transmission rod (18), one end of the transmission rod (18) is communicated with the reduction gearbox (10), the other end of the transmission rod is connected with the worm (11), supporting seats (19) are further arranged at two ends of the worm (11), and the supporting seats (19) are rotationally connected with the transmission rod (18).
7. The automatic adjustment tool for the guide shoe clearance of a hydraulic generator according to claim 4, wherein: one side of the screw wrench (13) is provided with a pressing piece (20), and the pressing piece (20) presses the screw wrench (13) on the rear panel (7) through at least three pressing piece supporting posts (21).
8. The automatic adjustment tool for the guide shoe clearance of a hydraulic generator according to claim 7, wherein: one side of the screw wrench (13) is also provided with a raised annular rotating boss (1301), and the rotating boss (1301) penetrates through a through hole of the pressing sheet (20) to be rotationally connected with the pressing sheet (20).
9. The automatic adjustment tool for the guide shoe clearance of a hydraulic generator according to claim 1, wherein: the two sides of the front panel (1) are also provided with fixed ear plates (2), and the fixed ear plates (2) are fixedly connected or hinged with the front panel (1);
the rear panel (7) is also provided with a control box (8), the control box (8) is electrically connected with the first motor (6), the second motor (9) and the third motor (14), and is also provided with a control handle, and the control handle is electrically connected with the control box (8).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021116583950 | 2021-12-31 | ||
| CN202111658395 | 2021-12-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114473940A CN114473940A (en) | 2022-05-13 |
| CN114473940B true CN114473940B (en) | 2024-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210109971.4A Active CN114473940B (en) | 2021-12-31 | 2022-01-29 | Automatic adjusting tool for guide shaft bush gap of hydraulic generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114473940B (en) |
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|---|---|---|---|---|
| JPH08280151A (en) * | 1995-04-05 | 1996-10-22 | Toshiba Corp | Device of supporting guide bearing of rotating electric machine |
| CN202883219U (en) * | 2012-10-18 | 2013-04-17 | 重庆水轮机厂有限责任公司 | Hydro-generator guide bearing clearance regulating mechanism |
| CN205630439U (en) * | 2016-05-31 | 2016-10-12 | 国网四川省电力公司映秀湾水力发电总厂 | Axle bush clearance adjustment combination wrench |
| CN108527234A (en) * | 2018-04-20 | 2018-09-14 | 江万泽 | A kind of gap specialized nut spanner |
| CN210135029U (en) * | 2019-04-02 | 2020-03-10 | 天生桥一级水电开发有限责任公司水力发电厂 | Guide bearing bush supporting device of hydroelectric generating set |
| CN111890279A (en) * | 2020-08-03 | 2020-11-06 | 湖北清江水电开发有限责任公司 | Power plant guide shoe gap adjusting tool and using method thereof |
| CN112236267A (en) * | 2018-12-11 | 2021-01-15 | 株式会社东日制作所 | Fastening device |
| CN212454670U (en) * | 2020-03-04 | 2021-02-02 | 昆明电机厂有限责任公司 | Hydraulic generator guide bearing bush clearance adjustment device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4891672B2 (en) * | 2006-06-30 | 2012-03-07 | 日東精工株式会社 | Screw parts fastening machine |
| EP4126459A1 (en) * | 2020-03-25 | 2023-02-08 | Milwaukee Electric Tool Corporation | Bolt tensioning tool |
-
2022
- 2022-01-29 CN CN202210109971.4A patent/CN114473940B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08280151A (en) * | 1995-04-05 | 1996-10-22 | Toshiba Corp | Device of supporting guide bearing of rotating electric machine |
| CN202883219U (en) * | 2012-10-18 | 2013-04-17 | 重庆水轮机厂有限责任公司 | Hydro-generator guide bearing clearance regulating mechanism |
| CN205630439U (en) * | 2016-05-31 | 2016-10-12 | 国网四川省电力公司映秀湾水力发电总厂 | Axle bush clearance adjustment combination wrench |
| CN108527234A (en) * | 2018-04-20 | 2018-09-14 | 江万泽 | A kind of gap specialized nut spanner |
| CN112236267A (en) * | 2018-12-11 | 2021-01-15 | 株式会社东日制作所 | Fastening device |
| CN210135029U (en) * | 2019-04-02 | 2020-03-10 | 天生桥一级水电开发有限责任公司水力发电厂 | Guide bearing bush supporting device of hydroelectric generating set |
| CN212454670U (en) * | 2020-03-04 | 2021-02-02 | 昆明电机厂有限责任公司 | Hydraulic generator guide bearing bush clearance adjustment device |
| CN111890279A (en) * | 2020-08-03 | 2020-11-06 | 湖北清江水电开发有限责任公司 | Power plant guide shoe gap adjusting tool and using method thereof |
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| Publication number | Publication date |
|---|---|
| CN114473940A (en) | 2022-05-13 |
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